/*
* JBoss, Home of Professional Open Source.
* Copyright 2009, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.ejb3.timerservice.naming;
import java.util.Hashtable;
import javax.ejb.TimerService;
import javax.naming.Context;
import javax.naming.Name;
import javax.naming.spi.ObjectFactory;
import org.jboss.ejb3.context.CurrentInvocationContext;
import org.jboss.ejb3.context.spi.BeanManager;
import org.jboss.ejb3.context.spi.EJBContext;
/**
* An implementation of {@link ObjectFactory} which is responsible for returing
* a {@link TimerService} for the current {@link EJBContext}
*
* @author Jaikiran Pai
* @version $Revision: $
*/
public class TimerServiceObjectFactory implements ObjectFactory
{
/**
* Returns {@link TimerService} for the current {@link EJBContext}
*/
@Override
public Object getObjectInstance(Object obj, Name name, Context nameCtx, Hashtable<?, ?> environment)
throws Exception
{
// get hold of EJBContext
EJBContext currentEJBContext = CurrentInvocationContext.get().getEJBContext();
// now get hold of the BeanManager from the EJBContext.
// Note that we could have directly used EJBContext.getTimerService(), but that
// won't work in all cases, because the EJBContext.getTimerService() is an user API
// and the spec mandates that this API throw an exception when invoked during injection.
// Internal implementation (like injectors) of EJB3 will require to get hold of the
// TimerService during injection (to actually do the injection). Hence we bypass the user
// API and instead use the BeanManager.getTimerService() which doesn't have a restriction
// on using it during injection.
BeanManager beanManager = currentEJBContext.getManager();
// now finally get hold of the timerservice
return beanManager.getTimerService();
}
}